DescriptionMade of glass and silicone material, this item is blood collection tubes with suction head are safe and hygienic, disposable and practical, suitable for blood donation activities, blood sample collection, etc.Feature- Color: As shown. - Material: Glass and silicone. - Size: 12.00X0.30X0.30cm/4.72X0.12X0.12 inch.- Capacity: 100ul. - Suitable for blood donation activities, blood sample collection, etc. - Disposable design, ensures that the blood does not mix. The silicone suction head for convenient to use. - Made of high-quality material for a long time and durable use. - It has a simple design, but very practical in use, giving you a good using experience. - Smooth surface and nice polished, neat and generous, so don't need to worry about harming your hand.